A sudden withdrawal of of 1 million (or large gradual withdrawals) should be regarded as an attack on Bitcoin.
How is withdrawing 1 million BTC an "attack" on bitcoin? It's Satoshi's money. Let him do whatever he wants with his money. He can spend it all on blackjack and hookers and hell do I care how he wants to spend it.
yes you are right, indeed that is his money. but if all the BTCs that he has are sold to the market, can this not cause turmoil. this will make a dump worse than last year.